// Grid Column Start / End
// 用于控制在网格列中元素的大小和放置方式的功能类。
.col-span-1
  grid-column span 1 / span 1

.col-span-2
  grid-column span 2 / span 2

.col-span-3
  grid-column span 3 / span 3

.col-span-4
  grid-column span 4 / span 4

.col-span-5
  grid-column span 5 / span 5

.col-span-6
  grid-column span 6 / span 6

.col-span-7
  grid-column span 7 / span 7

.col-span-8
  grid-column span 8 / span 8

.col-span-9
  grid-column span 9 / span 9

.col-span-10
  grid-column span 10 / span 10

.col-span-11
  grid-column span 11 / span 11

.col-span-12
  grid-column span 12 / span 12

.col-span-full
  grid-column 1 / -1
